static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad) { int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED; struct ib_mad_send_buf *send_buf; struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn]; int ret; if (agent) { send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA, GFP_ATOMIC); if (IS_ERR(send_buf)) return; /* * We rely here on the fact that MLX QPs don't use the * address handle after the send is posted (this is * wrong following the IB spec strictly, but we know * it's OK for our devices). */ spin_lock(&dev->sm_lock); memcpy(send_buf->mad, mad, sizeof *mad); if ((send_buf->ah = dev->sm_ah[port_num - 1])) ret = ib_post_send_mad(send_buf, NULL); else ret = -EINVAL; spin_unlock(&dev->sm_lock); if (ret) ib_free_send_mad(send_buf); } }
static int send_query(struct sa_db_port *port, struct update_info *update) { int ret; port->msg = get_sa_msg(port, update); if (!port->msg) return -ENOMEM; format_path_req(port, update, port->msg); ret = ib_post_send_mad(port->msg, NULL); if (ret) goto err; return 0; err: ib_destroy_ah(port->msg->ah); ib_free_send_mad(port->msg); return ret; }
static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad) { int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED; struct ib_mad_send_buf *send_buf; struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn]; int ret; if (agent) { send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA, GFP_ATOMIC); if (IS_ERR(send_buf)) return; spin_lock(&dev->sm_lock); memcpy(send_buf->mad, mad, sizeof *mad); if ((send_buf->ah = dev->sm_ah[port_num - 1])) ret = ib_post_send_mad(send_buf, NULL); else ret = -EINVAL; spin_unlock(&dev->sm_lock); if (ret) ib_free_send_mad(send_buf); } }